Plastic bag is a packaging bag made of thin and flexible plastic film. Plastic bags are mainly used to hold objects. They are common in supermarkets, markets, department stores, warehouses, garbage dumps, etc.

The outside of the plastic bag can be printed, used for advertising, publicity, instructions and other purposes.

Shenyang plastic bag material

Polyethylene (PE): high density polyethylene (HDPE) is commonly used in shopping bags, vest bags and inner packaging bags Low density polyethylene (LDPE) is commonly used in shopping bags, outer packaging bags, inner packaging bags and heat shrinkable films Linear low density polyethylene (LLDPE) is commonly used in fresh-keeping paper (film) or mixed with LDPE

Polypropylene (PP) is commonly used in high transparent outer packaging bags, high transparent packaging films and high transparent heat shrinkable films

Polyvinyl chloride (PVC) is found in blood bags, soft films, cut and sewn bags, and heat shrinkable films

Vinyl acetate (EVA) is found in special bags made by large companies

Polyethylene + vinyl acetate (PE + EVA mixture) can be found in special bags made by large companies

Polyethylene / polypropylene (PE / PP) is commonly used in high quality printed outer packaging bags

Polyethylene covered vinyl acetate (PE / EVA) is found in special bags made by large companies

Polyethylene covered polyvinyl chloride (PE / PVC) can be found in vacuum or fresh-keeping prepackaged bags

PE / nylon (PE / PA) is commonly used in meat vacuum and fresh-keeping prepackaging bags

Polyethylene coated polyethylene terephthalate (PE / PET) can be found in vacuum or fresh-keeping prepackaged bags

Polypropylene / polypropylene (PP / PP) is commonly used in high quality printed outer packaging bags

Application of plastic bags in Shenyang

It is generally believed that plastic bags appeared in modern human history and have been widely used and can not be easily replaced.

The plastic bag is light, easy to shape and has a wide range of applications. It can be soft, hard, wet, dry, sealed, breathable, one-time use and long-term use. Since its inception, plastics have been studied to replace metals, wood or glass to reduce weight, facilitate use, storage, transportation or reduce fuel consumption. Take plastic bags as an example - protect goods, keep food fresh, carry liquid and wrap air. Most of the goods in the supermarket are all plastic packaging.